Group key renewal problem

[Henrik Brix Andersen]

On Sat, Mar 11, 2006 at 09:49:40PM +0100, Henrik Brix Andersen wrote:
> Before group key renewal:
> 
> # cat /proc/net/hostap/wlan0/crypt
> tx_keyidx=1
> key[1] alg=CCMP key_set=1 tx_pn=000000000009 rx_pn=000000000000 format_errors=0 replays=0 decrypt_errors=0
> key[2] alg=CCMP key_set=1 tx_pn=000000000009 rx_pn=000000000000 format_errors=0 replays=0 decrypt_errors=0
> 
> After group key renewal:
> 
> # cat /proc/net/hostap/wlan0/crypt
> tx_keyidx=1
> key[1] alg=CCMP key_set=1 tx_pn=000000000005 rx_pn=000000000000 format_errors=0 replays=0 decrypt_errors=0
> key[2] alg=CCMP key_set=1 tx_pn=000000000009 rx_pn=000000000000 format_errors=0 replays=0 decrypt_errors=0

Just rechecked the above using a serial console on the AP. The
tx_keyidx increments on group key renewal. It is incremented at
roughly the same time the client spews the fourth ExtIV message.

Hope this helps.

Regards,
Brix
-- 
Henrik Brix Andersen <brix at gentoo.org>
Gentoo Metadistribution | Mobile computing herd
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